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tutorial: finish the first graphql tutorial (#1332)

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* tutorial: basic crud and node api for graphql tutorial

* Update doc/md/tutorial-todo-gql.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql-field-collection.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql-field-collection.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql-node.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql-field-collection.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql-node.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql-node.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* Update doc/md/tutorial-todo-gql-paginate.md

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

* doc/tutorial: code review comments

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>
This commit is contained in:
Ariel Mashraki
2021-03-15 11:30:09 +02:00
committed by GitHub
parent 6c4d34e91b
commit 0f7739d83b
10 changed files with 1033 additions and 28 deletions
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41
doc/md/tutorial-todo-crud.md
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@@ -1,7 +1,7 @@
---
id: tutorial-todo-crud
title: Queries and Mutations
sidebar_label: Queries and Mutations
title: Query and Mutation
sidebar_label: Query and Mutation
---
After setting up our project, we're ready to create our Todo list and query it.
@@ -127,15 +127,16 @@ func Example_Todo() {
After connecting item-2 to item-1, we're ready to start querying our todo list.
**Query all todo items**:
#### Query all todo items:
```go
func Example_Todo() {
// ...
// Query all todo items.
items, err := client.Todo.Query().All(ctx)
if err != nil {
log.Fatalf("querying todos: %v", err)
log.Fatalf("failed querying todos: %v", err)
}
for _, t := range items {
fmt.Printf("%d: %q\n", t.ID, t.Text)
@@ -146,15 +147,16 @@ func Example_Todo() {
}
```
**Query all todo items that depend on other items**:
#### Query all todo items that depend on other items:
```go
func Example_Todo() {
// ...
// Query all todo items that depend on other items.
items, err := client.Todo.Query().Where(todo.HasParent()).All(ctx)
if err != nil {
log.Fatalf("querying todos: %v", err)
log.Fatalf("failed querying todos: %v", err)
}
for _, t := range items {
fmt.Printf("%d: %q\n", t.ID, t.Text)
@@ -164,11 +166,12 @@ func Example_Todo() {
}
```
**Query all todo items that don't depend on other items and have items that depend on them**:
#### Query all todo items that don't depend on other items and have items that depend on them:
```go
func Example_Todo() {
// ...
// Query all todo items that don't depend on other items and have items that depend them.
items, err := client.Todo.Query().
Where(
@@ -179,7 +182,7 @@ func Example_Todo() {
).
All(ctx)
if err != nil {
log.Fatalf("querying todos: %v", err)
log.Fatalf("failed querying todos: %v", err)
}
for _, t := range items {
fmt.Printf("%d: %q\n", t.ID, t.Text)
@@ -189,7 +192,23 @@ func Example_Todo() {
}
```
---
#### Query parent through its children:
Please note that this documentation is under active development and supposed to be expanded in the near future.
Checkout the [Getting Started Doc](getting-started.md) for more details.
```go
func Example_Todo() {
// ...
// Get a parent item through its children and expect the
// query to return exactly one item.
parent, err := client.Todo.Query(). // Query all todos.
Where(todo.HasParent()). // Filter only those with parents.
QueryParent(). // Continue traversals to the parents.
Only(ctx) // Expect exactly one item.
if err != nil {
log.Fatalf("failed querying todos: %v", err)
}
fmt.Printf("%d: %q\n", parent.ID, parent.Text)
// Output:
// 1: "Add GraphQL Example"
}
```