POST license API endpoint (#3570)

* POST license API

Signed-off-by: Spike Curtis <spike@coder.com>

* Support interface{} types in generated Typescript

Signed-off-by: Spike Curtis <spike@coder.com>

* Disable linting on empty interface any

Signed-off-by: Spike Curtis <spike@coder.com>

* Code review updates

Signed-off-by: Spike Curtis <spike@coder.com>

* Enforce unique licenses

Signed-off-by: Spike Curtis <spike@coder.com>

* Renames from code review

Signed-off-by: Spike Curtis <spike@coder.com>

* Code review renames and comments

Signed-off-by: Spike Curtis <spike@coder.com>

Signed-off-by: Spike Curtis <spike@coder.com>

codersdk/licenses.go

@@ -0,0 +1,37 @@
+package codersdk
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+	"time"
+)
+
+type AddLicenseRequest struct {
+	License string `json:"license" validate:"required"`
+}
+
+type License struct {
+	ID         int32     `json:"id"`
+	UploadedAt time.Time `json:"uploaded_at"`
+	// Claims are the JWT claims asserted by the license.  Here we use
+	// a generic string map to ensure that all data from the server is
+	// parsed verbatim, not just the fields this version of Coder
+	// understands.
+	Claims map[string]interface{} `json:"claims"`
+}
+
+func (c *Client) AddLicense(ctx context.Context, r AddLicenseRequest) (License, error) {
+	res, err := c.Request(ctx, http.MethodPost, "/api/v2/licenses", r)
+	if err != nil {
+		return License{}, err
+	}
+	defer res.Body.Close()
+	if res.StatusCode != http.StatusCreated {
+		return License{}, readBodyAsError(res)
+	}
+	var l License
+	d := json.NewDecoder(res.Body)
+	d.UseNumber()
+	return l, d.Decode(&l)
+}