Fix treatment of slashes and add tests (#28)

2025-10-05 20:18:43 +00:00 · 2023-12-29 11:07:32 +00:00
parent b7a3f167b7
commit d4212ca887
11 changed files with 638 additions and 320 deletions
--- a/ConsumePlugin/GeneratedPureGymDto.fs
+++ b/ConsumePlugin/GeneratedPureGymDto.fs
@@ -266,9 +266,9 @@ namespace PureGym
 module SessionsAggregate =
    /// Parse from a JSON node.
    let jsonParse (node : System.Text.Json.Nodes.JsonNode) : SessionsAggregate =
-        let Duration = node.["duration"].AsValue().GetValue<int> ()
-        let Visits = node.["visits"].AsValue().GetValue<int> ()
-        let Activities = node.["activities"].AsValue().GetValue<int> ()
+        let Duration = node.["Duration"].AsValue().GetValue<int> ()
+        let Visits = node.["Visits"].AsValue().GetValue<int> ()
+        let Activities = node.["Activities"].AsValue().GetValue<int> ()

        {
            Activities = Activities
@@ -283,9 +283,9 @@ namespace PureGym
 module VisitGym =
    /// Parse from a JSON node.
    let jsonParse (node : System.Text.Json.Nodes.JsonNode) : VisitGym =
-        let Status = node.["status"].AsValue().GetValue<string> ()
-        let Name = node.["name"].AsValue().GetValue<string> ()
-        let Id = node.["id"].AsValue().GetValue<int> ()
+        let Status = node.["Status"].AsValue().GetValue<string> ()
+        let Name = node.["Name"].AsValue().GetValue<string> ()
+        let Id = node.["Id"].AsValue().GetValue<int> ()

        {
            Id = Id
@@ -300,13 +300,13 @@ namespace PureGym
 module Visit =
    /// Parse from a JSON node.
    let jsonParse (node : System.Text.Json.Nodes.JsonNode) : Visit =
-        let Gym = VisitGym.jsonParse node.["gym"]
-        let Duration = node.["duration"].AsValue().GetValue<int> ()
+        let Gym = VisitGym.jsonParse node.["Gym"]
+        let Duration = node.["Duration"].AsValue().GetValue<int> ()

        let StartTime =
-            node.["startTime"].AsValue().GetValue<string> () |> System.DateTime.Parse
+            node.["StartTime"].AsValue().GetValue<string> () |> System.DateTime.Parse

-        let IsDurationEstimated = node.["isDurationEstimated"].AsValue().GetValue<bool> ()
+        let IsDurationEstimated = node.["IsDurationEstimated"].AsValue().GetValue<bool> ()

        {
            IsDurationEstimated = IsDurationEstimated
@@ -322,8 +322,8 @@ namespace PureGym
 module SessionsSummary =
    /// Parse from a JSON node.
    let jsonParse (node : System.Text.Json.Nodes.JsonNode) : SessionsSummary =
-        let ThisWeek = SessionsAggregate.jsonParse node.["thisWeek"]
-        let Total = SessionsAggregate.jsonParse node.["total"]
+        let ThisWeek = SessionsAggregate.jsonParse node.["ThisWeek"]
+        let Total = SessionsAggregate.jsonParse node.["Total"]

        {
            Total = Total
@@ -338,11 +338,11 @@ module Sessions =
    /// Parse from a JSON node.
    let jsonParse (node : System.Text.Json.Nodes.JsonNode) : Sessions =
        let Visits =
-            node.["visits"].AsArray ()
+            node.["Visits"].AsArray ()
            |> Seq.map (fun elt -> Visit.jsonParse elt)
            |> List.ofSeq

-        let Summary = SessionsSummary.jsonParse node.["summary"]
+        let Summary = SessionsSummary.jsonParse node.["Summary"]

        {
            Summary = Summary
--- a/ConsumePlugin/GeneratedRestClient.fs
+++ b/ConsumePlugin/GeneratedRestClient.fs
@@ -22,10 +22,13 @@ module PureGymApi =
                async {
                    let! ct = Async.CancellationToken

+                    let uri =
+                        System.Uri (client.BaseAddress, System.Uri ("v1/gyms/", System.UriKind.Relative))
+
                    let httpMessage =
                        new System.Net.Http.HttpRequestMessage (
                            Method = System.Net.Http.HttpMethod.Get,
-                            RequestUri = System.Uri (client.BaseAddress.ToString () + "/v1/gyms/")
+                            RequestUri = uri
                        )

                    let! response = client.SendAsync (httpMessage, ct) |> Async.AwaitTask
@@ -44,14 +47,19 @@ module PureGymApi =
                async {
                    let! ct = Async.CancellationToken

+                    let uri =
+                        System.Uri (
+                            client.BaseAddress,
+                            System.Uri (
+                                "v1/gyms/{gym_id}/attendance".Replace ("{gym_id}", gymId.ToString ()),
+                                System.UriKind.Relative
+                            )
+                        )
+
                    let httpMessage =
                        new System.Net.Http.HttpRequestMessage (
                            Method = System.Net.Http.HttpMethod.Get,
-                            RequestUri =
-                                System.Uri (
-                                    client.BaseAddress.ToString ()
-                                    + "/v1/gyms/{gym_id}/attendance".Replace ("{gym_id}", gymId.ToString ())
-                                )
+                            RequestUri = uri
                        )

                    let! response = client.SendAsync (httpMessage, ct) |> Async.AwaitTask
@@ -70,10 +78,13 @@ module PureGymApi =
                async {
                    let! ct = Async.CancellationToken

+                    let uri =
+                        System.Uri (client.BaseAddress, System.Uri ("v1/member", System.UriKind.Relative))
+
                    let httpMessage =
                        new System.Net.Http.HttpRequestMessage (
                            Method = System.Net.Http.HttpMethod.Get,
-                            RequestUri = System.Uri (client.BaseAddress.ToString () + "/v1/member")
+                            RequestUri = uri
                        )

                    let! response = client.SendAsync (httpMessage, ct) |> Async.AwaitTask
@@ -92,14 +103,19 @@ module PureGymApi =
                async {
                    let! ct = Async.CancellationToken

+                    let uri =
+                        System.Uri (
+                            client.BaseAddress,
+                            System.Uri (
+                                "v1/gyms/{gym_id}".Replace ("{gym_id}", gymId.ToString ()),
+                                System.UriKind.Relative
+                            )
+                        )
+
                    let httpMessage =
                        new System.Net.Http.HttpRequestMessage (
                            Method = System.Net.Http.HttpMethod.Get,
-                            RequestUri =
-                                System.Uri (
-                                    client.BaseAddress.ToString ()
-                                    + "/v1/gyms/{gym_id}".Replace ("{gym_id}", gymId.ToString ())
-                                )
+                            RequestUri = uri
                        )

                    let! response = client.SendAsync (httpMessage, ct) |> Async.AwaitTask
@@ -118,10 +134,13 @@ module PureGymApi =
                async {
                    let! ct = Async.CancellationToken

+                    let uri =
+                        System.Uri (client.BaseAddress, System.Uri ("v1/member/activity", System.UriKind.Relative))
+
                    let httpMessage =
                        new System.Net.Http.HttpRequestMessage (
                            Method = System.Net.Http.HttpMethod.Get,
-                            RequestUri = System.Uri (client.BaseAddress.ToString () + "/v1/member/activity")
+                            RequestUri = uri
                        )

                    let! response = client.SendAsync (httpMessage, ct) |> Async.AwaitTask
@@ -136,22 +155,27 @@ module PureGymApi =
                }
                |> (fun a -> Async.StartAsTask (a, ?cancellationToken = ct))

-            member _.GetSessions (fromDate : DateTime, toDate : DateTime, ct : CancellationToken option) =
+            member _.GetSessions (fromDate : DateOnly, toDate : DateOnly, ct : CancellationToken option) =
                async {
                    let! ct = Async.CancellationToken

+                    let uri =
+                        System.Uri (
+                            client.BaseAddress,
+                            System.Uri (
+                                ("/v2/gymSessions/member"
+                                 + "?fromDate="
+                                 + ((fromDate.ToString "yyyy-MM-dd") |> System.Web.HttpUtility.UrlEncode)
+                                 + "&toDate="
+                                 + ((toDate.ToString "yyyy-MM-dd") |> System.Web.HttpUtility.UrlEncode)),
+                                System.UriKind.Relative
+                            )
+                        )
+
                    let httpMessage =
                        new System.Net.Http.HttpRequestMessage (
                            Method = System.Net.Http.HttpMethod.Get,
-                            RequestUri =
-                                System.Uri (
-                                    client.BaseAddress.ToString ()
-                                    + ("/v2/gymSessions/member"
-                                       + "?fromDate="
-                                       + ((fromDate.ToString "yyyy-MM-ddTHH:mm:ss") |> System.Web.HttpUtility.UrlEncode)
-                                       + "&toDate="
-                                       + ((toDate.ToString "yyyy-MM-ddTHH:mm:ss") |> System.Web.HttpUtility.UrlEncode))
-                                )
+                            RequestUri = uri
                        )

                    let! response = client.SendAsync (httpMessage, ct) |> Async.AwaitTask
--- a/ConsumePlugin/PureGymDto.fs
+++ b/ConsumePlugin/PureGymDto.fs
@@ -128,38 +128,52 @@ type MemberActivityDto =
 [<WoofWare.Myriad.Plugins.JsonParse>]
 type SessionsAggregate =
    {
+        [<JsonPropertyName "Activities">]
        Activities : int
+        [<JsonPropertyName "Visits">]
        Visits : int
+        [<JsonPropertyName "Duration">]
        Duration : int
    }

 [<WoofWare.Myriad.Plugins.JsonParse>]
 type VisitGym =
    {
+        [<JsonPropertyName "Id">]
        Id : int
+        [<JsonPropertyName "Name">]
        Name : string
+        [<JsonPropertyName "Status">]
        Status : string
    }

 [<WoofWare.Myriad.Plugins.JsonParse>]
 type Visit =
    {
+        [<JsonPropertyName "IsDurationEstimated">]
        IsDurationEstimated : bool
+        [<JsonPropertyName "StartTime">]
        StartTime : DateTime
+        [<JsonPropertyName "Duration">]
        Duration : int
+        [<JsonPropertyName "Gym">]
        Gym : VisitGym
    }

 [<WoofWare.Myriad.Plugins.JsonParse>]
 type SessionsSummary =
    {
+        [<JsonPropertyName "Total">]
        Total : SessionsAggregate
+        [<JsonPropertyName "ThisWeek">]
        ThisWeek : SessionsAggregate
    }

 [<WoofWare.Myriad.Plugins.JsonParse>]
 type Sessions =
    {
+        [<JsonPropertyName "Summary">]
        Summary : SessionsSummary
+        [<JsonPropertyName "Visits">]
        Visits : Visit list
    }
--- a/ConsumePlugin/RestApiExample.fs
+++ b/ConsumePlugin/RestApiExample.fs
@@ -22,6 +22,7 @@ type IPureGymApi =
    [<Get "v1/member/activity">]
    abstract GetMemberActivity : ?ct : CancellationToken -> Task<MemberActivityDto>

-    [<Get "v2/gymSessions/member">]
+    // We'll use this one to check handling of absolute URIs too
+    [<Get "/v2/gymSessions/member">]
    abstract GetSessions :
-        [<Query>] fromDate : DateTime * [<Query>] toDate : DateTime * ?ct : CancellationToken -> Task<Sessions>
+        [<Query>] fromDate : DateOnly * [<Query>] toDate : DateOnly * ?ct : CancellationToken -> Task<Sessions>
--- a/MyriadPlugin.Test/HttpClient.fs
+++ b/MyriadPlugin.Test/HttpClient.fs
@@ -0,0 +1,17 @@
+namespace MyriadPlugin.Test
+
+open System.Net.Http
+
+/// Simple implementation of an HttpClient.
+type HttpClientMock (result : HttpRequestMessage -> Async<HttpResponseMessage>) =
+    inherit HttpClient ()
+
+    override this.SendAsync (message, ct) =
+        Async.StartAsTask (result message, cancellationToken = ct)
+
+[<RequireQualifiedAccess>]
+module HttpClientMock =
+    let make (baseUrl : System.Uri) (handler : HttpRequestMessage -> Async<HttpResponseMessage>) =
+        let result = new HttpClientMock (handler)
+        result.BaseAddress <- baseUrl
+        result
--- a/MyriadPlugin.Test/MyriadPlugin.Test.fsproj
+++ b/MyriadPlugin.Test/MyriadPlugin.Test.fsproj
@@ -8,10 +8,13 @@
    </PropertyGroup>

    <ItemGroup>
-        <Compile Include="TestPureGymJson.fs" />
+      <Compile Include="HttpClient.fs" />
      <Compile Include="TestSurface.fs" />
      <Compile Include="TestRemoveOptions.fs" />
      <Compile Include="TestJsonParse.fs" />
+      <Compile Include="PureGymDtos.fs" />
+      <Compile Include="TestPureGymJson.fs" />
+      <Compile Include="TestRestApi.fs" />
    </ItemGroup>

    <ItemGroup>
--- a/MyriadPlugin.Test/PureGymDtos.fs
+++ b/MyriadPlugin.Test/PureGymDtos.fs
@@ -0,0 +1,264 @@
+namespace MyriadPlugin.Test
+
+open PureGym
+open System
+
+[<RequireQualifiedAccess>]
+module PureGymDtos =
+
+    let gymOpeningHoursCases =
+        [
+            """{"openingHours": [], "isAlwaysOpen": false}""",
+            {
+                GymOpeningHours.OpeningHours = []
+                IsAlwaysOpen = false
+            }
+            """{"openingHours": ["something"], "isAlwaysOpen": false}""",
+            {
+                GymOpeningHours.OpeningHours = [ "something" ]
+                IsAlwaysOpen = false
+            }
+        ]
+
+    let gymAccessOptionsCases =
+        List.allPairs [ true ; false ] [ true ; false ]
+        |> List.map (fun (a, b) ->
+            let s = sprintf """{"pinAccess": %b, "qrCodeAccess": %b}""" a b
+
+            s,
+            {
+                GymAccessOptions.PinAccess = a
+                QrCodeAccess = b
+            }
+        )
+
+    let gymAddressCases =
+        [
+            """{"addressLine1": "", "postCode": "hi", "town": ""}""",
+            {
+                GymAddress.AddressLine1 = ""
+                AddressLine2 = None
+                AddressLine3 = None
+                County = None
+                Postcode = "hi"
+                Town = ""
+            }
+            """{"addressLine1": "", "addressLine2": null, "postCode": "hi", "town": ""}""",
+            {
+                GymAddress.AddressLine1 = ""
+                AddressLine2 = None
+                AddressLine3 = None
+                County = None
+                Postcode = "hi"
+                Town = ""
+            }
+        ]
+
+    let gymLocationCases =
+        [
+            """{"latitude": 1.0, "longitude": 3.0}""",
+            {
+                GymLocation.Latitude = 1.0
+                Longitude = 3.0
+            }
+        ]
+
+    let gymCases =
+        let ovalJson =
+            """{"name":"London Oval","id":19,"status":2,"address":{"addressLine1":"Canterbury Court","addressLine2":"Units 4, 4A, 5 And 5A","addressLine3":"Kennington Park","town":"LONDON","county":null,"postcode":"SW9 6DE"},"phoneNumber":"+44 3444770005","emailAddress":"info.londonoval@puregym.com","staffMembers":null,"gymOpeningHours":{"isAlwaysOpen":true,"openingHours":[]},"reasonsToJoin":null,"accessOptions":{"pinAccess":true,"qrCodeAccess":true},"virtualTourUrl":null,"personalTrainersUrl":null,"webViewUrl":null,"floorPlanUrl":null,"location":{"longitude":"-0.110252","latitude":"51.480401"},"timeZone":"Europe/London","reopenDate":"2021-04-12T00:00:00+01 Europe/London"}"""
+
+        let oval =
+            {
+                Gym.Name = "London Oval"
+                Id = 19
+                Status = 2
+                Address =
+                    {
+                        AddressLine1 = "Canterbury Court"
+                        AddressLine2 = Some "Units 4, 4A, 5 And 5A"
+                        AddressLine3 = Some "Kennington Park"
+                        Town = "LONDON"
+                        County = None
+                        Postcode = "SW9 6DE"
+                    }
+                PhoneNumber = "+44 3444770005"
+                EmailAddress = "info.londonoval@puregym.com"
+                GymOpeningHours =
+                    {
+                        IsAlwaysOpen = true
+                        OpeningHours = []
+                    }
+                AccessOptions =
+                    {
+                        PinAccess = true
+                        QrCodeAccess = true
+                    }
+                Location =
+                    {
+                        Longitude = -0.110252
+                        Latitude = 51.480401
+                    }
+                TimeZone = "Europe/London"
+                ReopenDate = "2021-04-12T00:00:00+01 Europe/London"
+            }
+
+        [ ovalJson, oval ]
+
+    let memberCases =
+        let me =
+            {
+                Id = 1234567
+                CompoundMemberId = "12A123456"
+                FirstName = "Patrick"
+                LastName = "Stevens"
+                HomeGymId = 19
+                HomeGymName = "London Oval"
+                EmailAddress = "someone@somewhere"
+                GymAccessPin = "00000000"
+                DateOfBirth = DateOnly (1994, 01, 02)
+                MobileNumber = "+44 1234567"
+                Postcode = "W1A 1AA"
+                MembershipName = "Corporate"
+                MembershipLevel = 12
+                SuspendedReason = 0
+                MemberStatus = 2
+            }
+
+        let meJson =
+            """{
+  "id": 1234567,
+  "compoundMemberId": "12A123456",
+  "firstName": "Patrick",
+  "lastName": "Stevens",
+  "homeGymId": 19,
+  "homeGymName": "London Oval",
+  "emailAddress": "someone@somewhere",
+  "gymAccessPin": "00000000",
+  "dateofBirth": "1994-01-02",
+  "mobileNumber": "+44 1234567",
+  "postCode": "W1A 1AA",
+  "membershipName": "Corporate",
+  "membershipLevel": 12,
+  "suspendedReason": 0,
+  "memberStatus": 2
+}"""
+
+        [ meJson, me ]
+
+    let gymAttendanceCases =
+        let json =
+            """{
+  "description": "65",
+  "totalPeopleInGym": 65,
+  "totalPeopleInClasses": 2,
+  "totalPeopleSuffix": null,
+  "isApproximate": false,
+  "attendanceTime": "2023-12-27T18:54:09.5101697",
+  "lastRefreshed": "2023-12-27T18:54:09.5101697Z",
+  "lastRefreshedPeopleInClasses": "2023-12-27T18:50:26.0782286Z",
+  "maximumCapacity": 0
+}"""
+
+        let expected =
+            {
+                Description = "65"
+                TotalPeopleInGym = 65
+                TotalPeopleInClasses = 2
+                TotalPeopleSuffix = None
+                IsApproximate = false
+                AttendanceTime =
+                    DateTime (2023, 12, 27, 18, 54, 09, 510, 169, DateTimeKind.Utc)
+                    + TimeSpan.FromTicks 7L
+                LastRefreshed =
+                    DateTime (2023, 12, 27, 18, 54, 09, 510, 169, DateTimeKind.Utc)
+                    + TimeSpan.FromTicks 7L
+                LastRefreshedPeopleInClasses =
+                    DateTime (2023, 12, 27, 18, 50, 26, 078, 228, DateTimeKind.Utc)
+                    + TimeSpan.FromTicks 6L
+                MaximumCapacity = 0
+            }
+
+        [ json, expected ]
+
+    let memberActivityDtoCases =
+        let json =
+            """{"totalDuration":2217,"averageDuration":48,"totalVisits":46,"totalClasses":0,"isEstimated":false,"lastRefreshed":"2023-12-27T19:00:56.0309892Z"}"""
+
+        let value =
+            {
+                TotalDuration = 2217
+                AverageDuration = 48
+                TotalVisits = 46
+                TotalClasses = 0
+                IsEstimated = false
+                LastRefreshed =
+                    DateTime (2023, 12, 27, 19, 00, 56, 030, 989, DateTimeKind.Utc)
+                    + TimeSpan.FromTicks 2L
+            }
+
+        [ json, value ]
+
+    let sessionsCases =
+        let json =
+            """{
+    "Summary":{"Total":{"Activities":0,"Visits":10,"Duration":445},"ThisWeek":{"Activities":0,"Visits":0,"Duration":0}},
+    "Visits":[
+        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-21T10:12:00","Duration":50,"Name":null},
+        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-20T12:05:00","Duration":80,"Name":null},
+        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-17T19:37:00","Duration":46,"Name":null},
+        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-16T12:19:00","Duration":37,"Name":null},
+        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-15T11:14:00","Duration":47,"Name":null},
+        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-13T10:30:00","Duration":36,"Name":null},
+        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-10T16:18:00","Duration":32,"Name":null},
+        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-05T22:36:00","Duration":40,"Name":null},
+        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-03T17:59:00","Duration":48,"Name":null},
+        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-01T21:41:00","Duration":29,"Name":null}],
+        "Activities":[]}
+"""
+
+        let singleVisit startTime duration =
+            {
+                IsDurationEstimated = false
+                Gym =
+                    {
+                        Id = 19
+                        Name = "London Oval"
+                        Status = "Blocked"
+                    }
+                StartTime = startTime
+                Duration = duration
+            }
+
+        let expected =
+            {
+                Summary =
+                    {
+                        Total =
+                            {
+                                Activities = 0
+                                Visits = 10
+                                Duration = 445
+                            }
+                        ThisWeek =
+                            {
+                                Activities = 0
+                                Visits = 0
+                                Duration = 0
+                            }
+                    }
+                Visits =
+                    [
+                        singleVisit (DateTime (2023, 12, 21, 10, 12, 00)) 50
+                        singleVisit (DateTime (2023, 12, 20, 12, 05, 00)) 80
+                        singleVisit (DateTime (2023, 12, 17, 19, 37, 00)) 46
+                        singleVisit (DateTime (2023, 12, 16, 12, 19, 00)) 37
+                        singleVisit (DateTime (2023, 12, 15, 11, 14, 00)) 47
+                        singleVisit (DateTime (2023, 12, 13, 10, 30, 00)) 36
+                        singleVisit (DateTime (2023, 12, 10, 16, 18, 00)) 32
+                        singleVisit (DateTime (2023, 12, 05, 22, 36, 00)) 40
+                        singleVisit (DateTime (2023, 12, 03, 17, 59, 00)) 48
+                        singleVisit (DateTime (2023, 12, 01, 21, 41, 00)) 29
+                    ]
+            }
+
+        [ json, expected ]
--- a/MyriadPlugin.Test/TestPureGymJson.fs
+++ b/MyriadPlugin.Test/TestPureGymJson.fs
@@ -1,4 +1,4 @@
-namespace PureGym.Test
+namespace MyriadPlugin.Test

 open System
 open System.Text.Json.Nodes
@@ -9,300 +9,59 @@ open PureGym
 [<TestFixture>]
 module TestPureGymJson =

-    let gymOpeningHoursCases =
-        [
-            """{"openingHours": [], "isAlwaysOpen": false}""",
-            {
-                GymOpeningHours.OpeningHours = []
-                IsAlwaysOpen = false
-            }
-            """{"openingHours": ["something"], "isAlwaysOpen": false}""",
-            {
-                GymOpeningHours.OpeningHours = [ "something" ]
-                IsAlwaysOpen = false
-            }
-        ]
-        |> List.map TestCaseData
+    let gymOpeningHoursCases = PureGymDtos.gymOpeningHoursCases |> List.map TestCaseData

-    [<TestCaseSource(nameof (gymOpeningHoursCases))>]
+    [<TestCaseSource(nameof gymOpeningHoursCases)>]
    let ``GymOpeningHours JSON parse`` (json : string, expected : GymOpeningHours) =
        JsonNode.Parse json |> GymOpeningHours.jsonParse |> shouldEqual expected

    let gymAccessOptionsCases =
-        List.allPairs [ true ; false ] [ true ; false ]
-        |> List.map (fun (a, b) ->
-            let s = sprintf """{"pinAccess": %b, "qrCodeAccess": %b}""" a b
+        PureGymDtos.gymAccessOptionsCases |> List.map TestCaseData

-            s,
-            {
-                GymAccessOptions.PinAccess = a
-                QrCodeAccess = b
-            }
-        )
-        |> List.map TestCaseData
-
-    [<TestCaseSource(nameof (gymAccessOptionsCases))>]
+    [<TestCaseSource(nameof gymAccessOptionsCases)>]
    let ``GymAccessOptions JSON parse`` (json : string, expected : GymAccessOptions) =
        JsonNode.Parse json |> GymAccessOptions.jsonParse |> shouldEqual expected

-    let gymLocationCases =
-        [
-            """{"latitude": 1.0, "longitude": 3.0}""",
-            {
-                GymLocation.Latitude = 1.0
-                Longitude = 3.0
-            }
-        ]
-        |> List.map TestCaseData
+    let gymLocationCases = PureGymDtos.gymLocationCases |> List.map TestCaseData

-    [<TestCaseSource(nameof (gymLocationCases))>]
+    [<TestCaseSource(nameof gymLocationCases)>]
    let ``GymLocation JSON parse`` (json : string, expected : GymLocation) =
        JsonNode.Parse json |> GymLocation.jsonParse |> shouldEqual expected

-    let gymAddressCases =
-        [
-            """{"addressLine1": "", "postCode": "hi", "town": ""}""",
-            {
-                GymAddress.AddressLine1 = ""
-                AddressLine2 = None
-                AddressLine3 = None
-                County = None
-                Postcode = "hi"
-                Town = ""
-            }
-            """{"addressLine1": "", "addressLine2": null, "postCode": "hi", "town": ""}""",
-            {
-                GymAddress.AddressLine1 = ""
-                AddressLine2 = None
-                AddressLine3 = None
-                County = None
-                Postcode = "hi"
-                Town = ""
-            }
-        ]
-        |> List.map TestCaseData
+    let gymAddressCases = PureGymDtos.gymAddressCases |> List.map TestCaseData

-    [<TestCaseSource(nameof (gymAddressCases))>]
+    [<TestCaseSource(nameof gymAddressCases)>]
    let ``GymAddress JSON parse`` (json : string, expected : GymAddress) =
        JsonNode.Parse (json, Nullable (JsonNodeOptions (PropertyNameCaseInsensitive = true)))
        |> GymAddress.jsonParse
        |> shouldEqual expected

-    let gymCases =
-        let ovalJson =
-            """{"name":"London Oval","id":19,"status":2,"address":{"addressLine1":"Canterbury Court","addressLine2":"Units 4, 4A, 5 And 5A","addressLine3":"Kennington Park","town":"LONDON","county":null,"postcode":"SW9 6DE"},"phoneNumber":"+44 3444770005","emailAddress":"info.londonoval@puregym.com","staffMembers":null,"gymOpeningHours":{"isAlwaysOpen":true,"openingHours":[]},"reasonsToJoin":null,"accessOptions":{"pinAccess":true,"qrCodeAccess":true},"virtualTourUrl":null,"personalTrainersUrl":null,"webViewUrl":null,"floorPlanUrl":null,"location":{"longitude":"-0.110252","latitude":"51.480401"},"timeZone":"Europe/London","reopenDate":"2021-04-12T00:00:00+01 Europe/London"}"""
+    let gymCases = PureGymDtos.gymCases |> List.map TestCaseData

-        let oval =
-            {
-                Gym.Name = "London Oval"
-                Id = 19
-                Status = 2
-                Address =
-                    {
-                        AddressLine1 = "Canterbury Court"
-                        AddressLine2 = Some "Units 4, 4A, 5 And 5A"
-                        AddressLine3 = Some "Kennington Park"
-                        Town = "LONDON"
-                        County = None
-                        Postcode = "SW9 6DE"
-                    }
-                PhoneNumber = "+44 3444770005"
-                EmailAddress = "info.londonoval@puregym.com"
-                GymOpeningHours =
-                    {
-                        IsAlwaysOpen = true
-                        OpeningHours = []
-                    }
-                AccessOptions =
-                    {
-                        PinAccess = true
-                        QrCodeAccess = true
-                    }
-                Location =
-                    {
-                        Longitude = -0.110252
-                        Latitude = 51.480401
-                    }
-                TimeZone = "Europe/London"
-                ReopenDate = "2021-04-12T00:00:00+01 Europe/London"
-            }
-
-        [ ovalJson, oval ] |> List.map TestCaseData
-
-    [<TestCaseSource(nameof (gymCases))>]
+    [<TestCaseSource(nameof gymCases)>]
    let ``Gym JSON parse`` (json : string, expected : Gym) =
        JsonNode.Parse json |> Gym.jsonParse |> shouldEqual expected

-    let memberCases =
-        let me =
-            {
-                Id = 1234567
-                CompoundMemberId = "12A123456"
-                FirstName = "Patrick"
-                LastName = "Stevens"
-                HomeGymId = 19
-                HomeGymName = "London Oval"
-                EmailAddress = "someone@somewhere"
-                GymAccessPin = "00000000"
-                DateOfBirth = DateOnly (1994, 01, 02)
-                MobileNumber = "+44 1234567"
-                Postcode = "W1A 1AA"
-                MembershipName = "Corporate"
-                MembershipLevel = 12
-                SuspendedReason = 0
-                MemberStatus = 2
-            }
-
-        let meJson =
-            """{
-  "id": 1234567,
-  "compoundMemberId": "12A123456",
-  "firstName": "Patrick",
-  "lastName": "Stevens",
-  "homeGymId": 19,
-  "homeGymName": "London Oval",
-  "emailAddress": "someone@somewhere",
-  "gymAccessPin": "00000000",
-  "dateofBirth": "1994-01-02",
-  "mobileNumber": "+44 1234567",
-  "postCode": "W1A 1AA",
-  "membershipName": "Corporate",
-  "membershipLevel": 12,
-  "suspendedReason": 0,
-  "memberStatus": 2
-}"""
-
-        [ meJson, me ] |> List.map TestCaseData
+    let memberCases = PureGymDtos.memberCases |> List.map TestCaseData

    [<TestCaseSource(nameof memberCases)>]
    let ``Member JSON parse`` (json : string, expected : Member) =
        json |> JsonNode.Parse |> Member.jsonParse |> shouldEqual expected

-    let gymAttendanceCases =
-        let json =
-            """{
-  "description": "65",
-  "totalPeopleInGym": 65,
-  "totalPeopleInClasses": 2,
-  "totalPeopleSuffix": null,
-  "isApproximate": false,
-  "attendanceTime": "2023-12-27T18:54:09.5101697",
-  "lastRefreshed": "2023-12-27T18:54:09.5101697Z",
-  "lastRefreshedPeopleInClasses": "2023-12-27T18:50:26.0782286Z",
-  "maximumCapacity": 0
-}"""
-
-        let expected =
-            {
-                Description = "65"
-                TotalPeopleInGym = 65
-                TotalPeopleInClasses = 2
-                TotalPeopleSuffix = None
-                IsApproximate = false
-                AttendanceTime =
-                    DateTime (2023, 12, 27, 18, 54, 09, 510, 169, DateTimeKind.Utc)
-                    + TimeSpan.FromTicks 7L
-                LastRefreshed =
-                    DateTime (2023, 12, 27, 18, 54, 09, 510, 169, DateTimeKind.Utc)
-                    + TimeSpan.FromTicks 7L
-                LastRefreshedPeopleInClasses =
-                    DateTime (2023, 12, 27, 18, 50, 26, 078, 228, DateTimeKind.Utc)
-                    + TimeSpan.FromTicks 6L
-                MaximumCapacity = 0
-            }
-
-        [ json, expected ] |> List.map TestCaseData
+    let gymAttendanceCases = PureGymDtos.gymAttendanceCases |> List.map TestCaseData

    [<TestCaseSource(nameof gymAttendanceCases)>]
    let ``GymAttendance JSON parse`` (json : string, expected : GymAttendance) =
        json |> JsonNode.Parse |> GymAttendance.jsonParse |> shouldEqual expected

    let memberActivityDtoCases =
-        let json =
-            """{"totalDuration":2217,"averageDuration":48,"totalVisits":46,"totalClasses":0,"isEstimated":false,"lastRefreshed":"2023-12-27T19:00:56.0309892Z"}"""
-
-        let value =
-            {
-                TotalDuration = 2217
-                AverageDuration = 48
-                TotalVisits = 46
-                TotalClasses = 0
-                IsEstimated = false
-                LastRefreshed =
-                    DateTime (2023, 12, 27, 19, 00, 56, 030, 989, DateTimeKind.Utc)
-                    + TimeSpan.FromTicks 2L
-            }
-
-        [ json, value ] |> List.map TestCaseData
+        PureGymDtos.memberActivityDtoCases |> List.map TestCaseData

    [<TestCaseSource(nameof memberActivityDtoCases)>]
    let ``MemberActivityDto JSON parse`` (json : string, expected : MemberActivityDto) =
        json |> JsonNode.Parse |> MemberActivityDto.jsonParse |> shouldEqual expected

-    let sessionsCases =
-        let json =
-            """{
-    "Summary":{"Total":{"Activities":0,"Visits":10,"Duration":445},"ThisWeek":{"Activities":0,"Visits":0,"Duration":0}},
-    "Visits":[
-        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-21T10:12:00","Duration":50,"Name":null},
-        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-20T12:05:00","Duration":80,"Name":null},
-        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-17T19:37:00","Duration":46,"Name":null},
-        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-16T12:19:00","Duration":37,"Name":null},
-        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-15T11:14:00","Duration":47,"Name":null},
-        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-13T10:30:00","Duration":36,"Name":null},
-        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-10T16:18:00","Duration":32,"Name":null},
-        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-05T22:36:00","Duration":40,"Name":null},
-        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-03T17:59:00","Duration":48,"Name":null},
-        {"IsDurationEstimated":false,"Gym":{"Id":19,"Name":"London Oval","Status":"Blocked","Location":null,"GymAccess":null,"ContactInfo":null,"TimeZone":null},"StartTime":"2023-12-01T21:41:00","Duration":29,"Name":null}],
-        "Activities":[]}
-"""
-
-        let singleVisit startTime duration =
-            {
-                IsDurationEstimated = false
-                Gym =
-                    {
-                        Id = 19
-                        Name = "London Oval"
-                        Status = "Blocked"
-                    }
-                StartTime = startTime
-                Duration = duration
-            }
-
-        let expected =
-            {
-                Summary =
-                    {
-                        Total =
-                            {
-                                Activities = 0
-                                Visits = 10
-                                Duration = 445
-                            }
-                        ThisWeek =
-                            {
-                                Activities = 0
-                                Visits = 0
-                                Duration = 0
-                            }
-                    }
-                Visits =
-                    [
-                        singleVisit (DateTime (2023, 12, 21, 10, 12, 00)) 50
-                        singleVisit (DateTime (2023, 12, 20, 12, 05, 00)) 80
-                        singleVisit (DateTime (2023, 12, 17, 19, 37, 00)) 46
-                        singleVisit (DateTime (2023, 12, 16, 12, 19, 00)) 37
-                        singleVisit (DateTime (2023, 12, 15, 11, 14, 00)) 47
-                        singleVisit (DateTime (2023, 12, 13, 10, 30, 00)) 36
-                        singleVisit (DateTime (2023, 12, 10, 16, 18, 00)) 32
-                        singleVisit (DateTime (2023, 12, 05, 22, 36, 00)) 40
-                        singleVisit (DateTime (2023, 12, 03, 17, 59, 00)) 48
-                        singleVisit (DateTime (2023, 12, 01, 21, 41, 00)) 29
-                    ]
-            }
-
-        [ json, expected ] |> List.map TestCaseData
+    let sessionsCases = PureGymDtos.sessionsCases |> List.map TestCaseData

    [<TestCaseSource(nameof sessionsCases)>]
    let ``Sessions JSON parse`` (json : string, expected : Sessions) =
--- a/MyriadPlugin.Test/TestRestApi.fs
+++ b/MyriadPlugin.Test/TestRestApi.fs
@@ -0,0 +1,238 @@
+namespace MyriadPlugin.Test
+
+open System
+open System.Net
+open System.Net.Http
+open NUnit.Framework
+open PureGym
+open FsUnitTyped
+
+[<TestFixture>]
+module TestRestApi =
+    // several of these, to check behaviour around treatment of initial slashes
+    let baseUris =
+        [
+            // Everything is relative to the root:
+            "https://example.com"
+            // Everything is also relative to the root, because `foo` is not a subdir:
+            "https://example.com/foo"
+            // Everything is relative to `foo`, because `foo` is a subdir
+            "https://example.com/foo/"
+        ]
+        |> List.map Uri
+
+    let gymsCases =
+        PureGymDtos.gymCases
+        |> List.collect (fun (json, gym) -> [ $"[%s{json}]", [ gym ] ; $"[%s{json}, %s{json}]", [ gym ; gym ] ])
+        |> List.allPairs baseUris
+        |> List.map TestCaseData
+
+    [<TestCaseSource(nameof gymsCases)>]
+    let ``Test GetGyms`` (baseUri : Uri, (json : string, expected : Gym list)) =
+        let proc (message : HttpRequestMessage) : HttpResponseMessage Async =
+            async {
+                message.Method |> shouldEqual HttpMethod.Get
+
+                // URI is relative in the attribute on the IPureGymApi member,
+                // so this never gets redirected
+                let expectedUri =
+                    match baseUri.ToString () with
+                    | "https://example.com/" -> "https://example.com/v1/gyms/"
+                    | "https://example.com/foo" -> "https://example.com/v1/gyms/"
+                    | "https://example.com/foo/" -> "https://example.com/foo/v1/gyms/"
+                    | s -> failwith $"Unrecognised base URI: %s{s}"
+
+                message.RequestUri.ToString () |> shouldEqual expectedUri
+
+                let content = new StringContent (json)
+                let resp = new HttpResponseMessage (HttpStatusCode.OK)
+                resp.Content <- content
+                return resp
+            }
+
+        use client = HttpClientMock.make baseUri proc
+        let api = PureGymApi.make client
+
+        api.GetGyms().Result |> shouldEqual expected
+
+    let gymAttendanceCases =
+        PureGymDtos.gymAttendanceCases
+        |> List.allPairs baseUris
+        |> List.map TestCaseData
+
+    [<TestCaseSource(nameof gymAttendanceCases)>]
+    let ``Test GetGymAttendance`` (baseUri : Uri, (json : string, expected : GymAttendance)) =
+        let requestedGym = 3
+
+        let proc (message : HttpRequestMessage) : HttpResponseMessage Async =
+            async {
+                message.Method |> shouldEqual HttpMethod.Get
+
+                // URI is relative in the attribute on the IPureGymApi member,
+                // so this never gets redirected
+                let expectedUri =
+                    match baseUri.ToString () with
+                    | "https://example.com/" -> $"https://example.com/v1/gyms/%i{requestedGym}/attendance"
+                    | "https://example.com/foo" -> $"https://example.com/v1/gyms/%i{requestedGym}/attendance"
+                    | "https://example.com/foo/" -> $"https://example.com/foo/v1/gyms/%i{requestedGym}/attendance"
+                    | s -> failwith $"Unrecognised base URI: %s{s}"
+
+                message.RequestUri.ToString () |> shouldEqual expectedUri
+
+                let content = new StringContent (json)
+                let resp = new HttpResponseMessage (HttpStatusCode.OK)
+                resp.Content <- content
+                return resp
+            }
+
+        use client = HttpClientMock.make baseUri proc
+        let api = PureGymApi.make client
+
+        api.GetGymAttendance(requestedGym).Result |> shouldEqual expected
+
+    let memberCases =
+        PureGymDtos.memberCases |> List.allPairs baseUris |> List.map TestCaseData
+
+    [<TestCaseSource(nameof memberCases)>]
+    let ``Test GetMember`` (baseUri : Uri, (json : string, expected : Member)) =
+        let proc (message : HttpRequestMessage) : HttpResponseMessage Async =
+            async {
+                message.Method |> shouldEqual HttpMethod.Get
+
+                // URI is relative in the attribute on the IPureGymApi member,
+                // so this never gets redirected
+                let expectedUri =
+                    match baseUri.ToString () with
+                    | "https://example.com/" -> "https://example.com/v1/member"
+                    | "https://example.com/foo" -> "https://example.com/v1/member"
+                    | "https://example.com/foo/" -> "https://example.com/foo/v1/member"
+                    | s -> failwith $"Unrecognised base URI: %s{s}"
+
+                message.RequestUri.ToString () |> shouldEqual expectedUri
+
+                let content = new StringContent (json)
+                let resp = new HttpResponseMessage (HttpStatusCode.OK)
+                resp.Content <- content
+                return resp
+            }
+
+        use client = HttpClientMock.make baseUri proc
+        let api = PureGymApi.make client
+
+        api.GetMember().Result |> shouldEqual expected
+
+    let gymCases =
+        PureGymDtos.gymCases |> List.allPairs baseUris |> List.map TestCaseData
+
+    [<TestCaseSource(nameof gymCases)>]
+    let ``Test GetGym`` (baseUri : Uri, (json : string, expected : Gym)) =
+        let requestedGym = 3
+
+        let proc (message : HttpRequestMessage) : HttpResponseMessage Async =
+            async {
+                message.Method |> shouldEqual HttpMethod.Get
+
+                // URI is relative in the attribute on the IPureGymApi member,
+                // so this never gets redirected
+                let expectedUri =
+                    match baseUri.ToString () with
+                    | "https://example.com/" -> $"https://example.com/v1/gyms/%i{requestedGym}"
+                    | "https://example.com/foo" -> $"https://example.com/v1/gyms/%i{requestedGym}"
+                    | "https://example.com/foo/" -> $"https://example.com/foo/v1/gyms/%i{requestedGym}"
+                    | s -> failwith $"Unrecognised base URI: %s{s}"
+
+                message.RequestUri.ToString () |> shouldEqual expectedUri
+
+                let content = new StringContent (json)
+                let resp = new HttpResponseMessage (HttpStatusCode.OK)
+                resp.Content <- content
+                return resp
+            }
+
+        use client = HttpClientMock.make baseUri proc
+        let api = PureGymApi.make client
+
+        api.GetGym(requestedGym).Result |> shouldEqual expected
+
+    let memberActivityCases =
+        PureGymDtos.memberActivityDtoCases
+        |> List.allPairs baseUris
+        |> List.map TestCaseData
+
+    [<TestCaseSource(nameof memberActivityCases)>]
+    let ``Test GetMemberActivity`` (baseUri : Uri, (json : string, expected : MemberActivityDto)) =
+        let proc (message : HttpRequestMessage) : HttpResponseMessage Async =
+            async {
+                message.Method |> shouldEqual HttpMethod.Get
+
+                // URI is relative in the attribute on the IPureGymApi member,
+                // so this never gets redirected
+                let expectedUri =
+                    match baseUri.ToString () with
+                    | "https://example.com/" -> "https://example.com/v1/member/activity"
+                    | "https://example.com/foo" -> "https://example.com/v1/member/activity"
+                    | "https://example.com/foo/" -> "https://example.com/foo/v1/member/activity"
+                    | s -> failwith $"Unrecognised base URI: %s{s}"
+
+                message.RequestUri.ToString () |> shouldEqual expectedUri
+
+                let content = new StringContent (json)
+                let resp = new HttpResponseMessage (HttpStatusCode.OK)
+                resp.Content <- content
+                return resp
+            }
+
+        use client = HttpClientMock.make baseUri proc
+        let api = PureGymApi.make client
+
+        api.GetMemberActivity().Result |> shouldEqual expected
+
+    let dates =
+        [
+            for month = 1 to 3 do
+                // span the number 12, to catch muddling up month and day
+                for day = 11 to 13 do
+                    yield DateOnly (2023, month, day)
+        ]
+
+    let sessionsCases =
+        PureGymDtos.sessionsCases
+        |> List.allPairs dates
+        |> List.allPairs dates
+        |> List.allPairs baseUris
+        |> List.map TestCaseData
+
+    let inline dateOnlyToString (d : DateOnly) : string =
+        let month = if d.Month < 10 then $"0%i{d.Month}" else $"%i{d.Month}"
+        let day = if d.Day < 10 then $"0%i{d.Day}" else $"%i{d.Day}"
+        $"{d.Year}-{month}-{day}"
+
+    [<TestCaseSource(nameof sessionsCases)>]
+    let ``Test GetSessions``
+        (
+            baseUri : Uri,
+            (startDate : DateOnly, (endDate : DateOnly, (json : string, expected : Sessions)))
+        )
+        =
+        let proc (message : HttpRequestMessage) : HttpResponseMessage Async =
+            async {
+                message.Method |> shouldEqual HttpMethod.Get
+
+                // This one is specified as being absolute, in its attribute on the IPureGymApi type
+                let expectedUri =
+                    let fromDate = dateOnlyToString startDate
+                    let toDate = dateOnlyToString endDate
+                    $"https://example.com/v2/gymSessions/member?fromDate=%s{fromDate}&toDate=%s{toDate}"
+
+                message.RequestUri.ToString () |> shouldEqual expectedUri
+
+                let content = new StringContent (json)
+                let resp = new HttpResponseMessage (HttpStatusCode.OK)
+                resp.Content <- content
+                return resp
+            }
+
+        use client = HttpClientMock.make baseUri proc
+        let api = PureGymApi.make client
+
+        api.GetSessions(startDate, endDate).Result |> shouldEqual expected
--- a/README.md
+++ b/README.md
@@ -204,6 +204,7 @@ RestEase is complex, and handles a lot of different stuff.
 * Parameters are serialised solely with `ToString`, and there's no control over this; nor is there control over encoding in any sense.
 * Deserialisation follows the same logic as the `JsonParse` generator, and it generally assumes you're using types which `JsonParse` is applied to.
 * Headers are not yet supported.
+* You have to specify the `BaseAddress` on the input client yourself, and you can't have the same client talking to a different `BaseAddress` this way unless you manually set it before making any different request.
 * I haven't yet worked out how to integrate this with a mocked HTTP client; you can always mock up an `HttpClient`, but I prefer to use a mock which defines a single member `SendAsync`.
 * Anonymous parameters are currently forbidden.
 * Every function must take an optional `CancellationToken` (which is good practice anyway); so arguments are forced to be tupled. This is a won't-fix for as long as F# requires tupled arguments if any of the args are optional.
--- a/WoofWare.Myriad.Plugins/HttpClientGenerator.fs
+++ b/WoofWare.Myriad.Plugins/HttpClientGenerator.fs
@@ -184,8 +184,7 @@ module internal HttpClientGenerator =
            )

        let requestUriTrailer =
-            // TODO: more principled treatment of the slash
-            (SynExpr.CreateConstString ("/" + info.UrlTemplate.TrimStart '/'), info.Args)
+            (SynExpr.CreateConstString info.UrlTemplate, info.Args)
            ||> List.fold (fun template arg ->
                (template, arg.Attributes)
                ||> List.fold (fun template attr ->
@@ -278,27 +277,24 @@ module internal HttpClientGenerator =
                |> SynExpr.CreateParen

        let requestUri =
+            let uriIdent = SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "Uri" ])
+
            SynExpr.App (
                ExprAtomicFlag.Atomic,
                false,
-                SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "Uri" ]),
-                SynExpr.CreateParen (
-                    SynExpr.plus
-                        (SynExpr.App (
-                            ExprAtomicFlag.Atomic,
-                            false,
-                            SynExpr.CreateLongIdent (
-                                SynLongIdent.SynLongIdent (
-                                    [ Ident.Create "client" ; Ident.Create "BaseAddress" ; Ident.Create "ToString" ],
-                                    [ range0 ; range0 ],
-                                    [ None ; None ; None ]
-                                )
-                            ),
-                            SynExpr.CreateConst SynConst.Unit,
-                            range0
-                        ))
+                uriIdent,
+                SynExpr.CreateParenedTuple
+                    [
+                        SynExpr.CreateLongIdent (SynLongIdent.Create [ "client" ; "BaseAddress" ])
+                        SynExpr.CreateApp (
+                            uriIdent,
+                            SynExpr.CreateParenedTuple
+                                [
                                    requestUriTrailer
-                ),
+                                    SynExpr.CreateLongIdent (SynLongIdent.Create [ "System" ; "UriKind" ; "Relative" ])
+                                ]
+                        )
+                    ],
                range0
            )

@@ -324,7 +320,7 @@ module internal HttpClientGenerator =
                        SynLongIdent.Create
                            [ "System" ; "Net" ; "Http" ; "HttpMethod" ; httpMethodString info.HttpMethod ]
                    ))
-                SynExpr.equals (SynExpr.CreateIdentString "RequestUri") requestUri
+                SynExpr.equals (SynExpr.CreateIdentString "RequestUri") (SynExpr.CreateIdentString "uri")
            ]
            |> SynExpr.CreateParenedTuple

@@ -337,6 +333,7 @@ module internal HttpClientGenerator =
        let implementation =
            [
                yield LetBang ("ct", SynExpr.CreateLongIdent (SynLongIdent.Create [ "Async" ; "CancellationToken" ]))
+                yield Let ("uri", requestUri)
                yield
                    Use (
                        "httpMessage",